Maximise pyrite depression in copper ore flotation using …
The depression of pyrite in copper ore flotation is a challenge in high salinity water although natural pyrite can be depressed readily at alkaline pH due to the formation of iron hydroxides on pyrite surfaces (Boulton et al., 2001, Mu et al., 2016 ). In copper ore flotation, a galvanic interaction occurs between copper minerals and pyrite with ...
The future of flotation
Unfortunately, the conventional flotation cell achieves high recovery only in limited size ranges. For example, a sulfide ore might float very well at 90 to 120 microns, but not at 50 or 150 microns. The research to date has identified two main reasons for the upper limit on floatable particle sizes.
Improving the performance of a low-grade porphyry …
Flotation may be the most important separation process used in the minerals industry. Its objective is to produce a salable concentrate from a mined ore with desired …
Parametric Optimization in Rougher Flotation …
The rougher flotation behavior of a sulfidized copper ore was studied by a series of batch flotation experiments. Response surface modeling based on central composite design was applied to optimize and evaluate the effects of collector, depressant and frother dosages, solution pH and agitation rate on the copper recovery.
Flotation Cell Design: Application of Fundamental …
The Bateman otation mechanism was developed in. S 1993 and is presently marketed by the Bateman Pro-cess Equipment Limited. The BQR series of Bateman cells have a round tank design with cell sizes varying. Figure 8 A schematic diagram of the Bateman flotation cell (courtesy of Bateman Process Equipment, South Africa).
Increasing the grind size for effective liberation and flotation …
Furthermore, Sahyoun et al. (2005) conducted flotation tests on the same ore and demonstrated a 3–6% increase in copper recovery after microwave treatment (up to 12 kW and 1.7 kW h/t on <22 mm size material) as opposed to the 1% increase reported by Kingman et al. (2000a), attributed to the higher power density sustained in the single …
Design, Modeling, Optimization and Control of Flotation …
Impact of operation parameters on designing flotation cells (gas hold-up, superficial gas velocity, bubble size distribution and orifice type, etc.); ... (RNN) method were used to predict the copper ore flotation indices, i.e., grade and recovery within different operating conditions. The model input parameters including pulp pH and solid ...
Comparison of single and mixed reagent systems for flotation of copper …
Fig. 12 (a) depicts the results of copper ore flotation with respect to sequence of collector addition in the presence of xanthate and thionocarbamate collector mixture in the ratio 1:1. The Cu recovery and grade is maximum when BBT was added first in the flotation cell.
Mineralogical Prediction on the Flotation Behavior of Copper …
The copper ore in Chilean copper porphyry deposits is often associated with molybdenum minerals. This copper–molybdenum (Cu–Mo) sulfide ore is generally mined from various locations in the mining site; thus, the mineral composition, oxidation degree, mineral particle size, and grade vary. Therefore, in the mining operation, it is …
60 Centuries of Copper: The Flotation Process
The powdered product of grinding the ore is fed into a series of tanks called flotation cells which are filled with a solution containing various oils capable of forming a froth. Air is pumped into each cell, the solution being agitated to bring froth of bubbles to the surface. In the case of copper minerals, the particles adhere to this froth ...
Estimated Water Requirements for the Conventional …
Figure 1 is a generalized diagram of a conventional copper flotation plant from the point where ore first enters the circuit to the production of concentrate and tailings. To prepare ore for the flotation process, run-of-mine ore, which may contain from about 2 to 5 percent water, by weight, when mined, is
FLOT-ART: An integrated plant optimization tool for …
1.1. FLOT-ART (Flotation advanced recovery technology) This paper aims to discuss the concepts of an integrated plant optimization tool for the flotation of copper …
Flotation of Nickel-Copper Sulphide Ore: Optimisation …
All the flotation test-work was done using the Denver laboratory machine with a 1.5l stainless steel flotation cell. The required mass of nickel-copper sulphide ore material ground to 70% passing 75 µm was weighed and placed in the flotation cell. This was followed by the addition of distilled water to about
COPPER FLOTATION PLANT
The Pineer froth flotation process enables sustainable and cost-effective copper/lead/zinc ore recovery. Comes from one supplier, responsible for the whole package. Provides mechanical and performance guarantees for the entire plant unit, with clear battery limits for engineering and implementation. Provides optimal process …
The Challenges and Prospects of Recovering Fine Copper …
The column flotation cell (CFC) was invented in the 1960s but did not gain wide acceptance in the processing of base metals until the early 1980s . In column flotation, ore is introduced near the top of the column and sparging air from bottom, creating a deep froth zone. Wash water is added from the top to remove fine entrained …
Application of macromolecular organic polymer S-7261A
Flotation test. The actual ore test adopted the XF single-cell flotation machine, the rougher cell volume being 1.5 L, the concentration cell volume being 1.0 L and 0.5 L, the flotation machine speed being 1920 rpm for both rougher and cleaner flotation stages, and the air flow being 160.0 L/h for rougher and 130.0 L/h for cleaner.
Synergistic effect of acidified water glass and locust bean …
The bench-scale flotation results show that using acidified water glass in conjunction with locust bean gum is suitable in the flotation of a refractory copper sulfide ore that contains multiple MgO gangue minerals, and a copper concentrate with grade of 20.25% and recovery of 75.8% is achieved when the feed ore copper grade is 0.16%.
Effect of surface oxidation on the flotation response of …
The copper oxidation species might not be critical in the flotation of copper minerals; however, they can activate some other minerals present in the ore samples such as pyrite or non-sulphide gangue minerals, which then affect the selectivity of the separation. 3.2. Iron. The EDTA extractable iron after grinding (mill discharge) is about 2%.
Evaluation of sodium isobutyl xanthate as a collector in the …
The dosage of a collector is an important factor that determines the efficiency of a froth flotation process. The representative sample of the carbonatitic Palabora copper ore ground 45 % passing 75 µm was froth-floated with sodium isobutyl xanthate (SIBX) collector at 60, 70, 80, 90 and 100 g/t dosages. The concentrates and tails were dried …
Molybdenum Ore Processing by Flotation
This molybdenum flotation circuit, based on 250-500 tons per 24 hours is designed for low-grade molybdenum ore having high-grade streaks and with pyrite-quartz gangue. It is also basically sound for many …
Influence of electrochemical environment on the flotation …
Flotation of the copper ore after grinding in a ceramic ball mill without collector The flotation response of the iron sulphides after grinding in either a ce- ramic or iron mill, is independent of Eh (Fig. 8 ). However, the levels of flo- tation are greater in a ceramic mill than when grinding is carried out in a cast iron ball mill.
Flotation of copper ore in a pneumatic flotation …
The pneumatic flotation cell consists of a separation vessel and aerators (reactors) isolated from the sepa ration vessel. The dispersion of air and formation of aggregates …
Multidimensional Optimization of the Copper Flotation …
Abstract: Three factors were measured in the flotation process of copper ore: the copper grade in. a concentrate ( ), the copper grade in tailings (#), and the …
(PDF) Flotation of an Oxidized Copper Sulfide Ore
From a flotation feed assaying 2.7% Cu, a copper concentrate assaying about 23.5% Cu at a recovery of 91.5% was obtained in only one roughing and one cleaning stages. EFFECT OF THE COLLECTOR ...
Improvement of ore recovery efficiency in a flotation …
Abstract. The ore process flotation technique is enhanced by using external ultra-sonic waves. Compared to the classical flotation method, the application of …
Copper Nickel Flotation
The final tailing was rejected in the cobalt-nickel circuit. The flotation pilot plant is shown. Results typical of a single shift during the pilot run are summarized. The recoveries of lead and copper were 87.1% …
Flotation of copper ore in a pneumatic flotation cell
The advantages of pneumatic flotation cells over mechanical flotation cells, as well as flotation columns, for the flotation of sulfide ore were demonstrated. Test results indicated that the Cu grade and recovery for concentrates obtained when using the pneumatic flotation cell were 1% to 2% and 4%, respectively, higher than those …
Improve Copper Yield in Flotation Tanks
Rich copper concentrate is produced from crude copper sulfide ore by means of a flotation process that takes advantage of the physical and chemical properties of small …
Interaction effects of flotation reagents for SAG mill reject of copper
The mill discharge was then transferred to a 2.5 L Denver flotation cell at the pulp density of 25% (w/v). After that, the desired amounts of reagents were added to the slurry while agitating at 1200 r/min and the slurry was conditioned for 5 min. ... Evaluation of chemical and operational variables for the flotation of a copper ore. Part I ...
Upgrading of talc-bearing copper-nickel sulfide ore by froth flotation …
The rougher flotation and closed-circuit flotation tests of copper-nickel sulfide ore (1.0 kg) were performed on XFD-63 type flotation machines of different capacities (3.0 L, 1.0 L, obtained from Wuhan Exploration Machinery Co., Ltd.) [5], with mechanically stirring speed of 1610 rpm.The 3.0 L cell was used for rougher and …